Chapter 18, Problem 2P

### College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

Chapter
Section

### College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

# (a) Find the current in an 8.00-Ω resistor connected to a battery that has an internal resistance of 0.15 Ω if the voltage across the battery (the terminal voltage) is 9.00 V. (b) What is the emf of the battery?

(a)

To determine
The current produced by the battery.

Explanation

Given Info: The resistor is 8.00â€‰Î© and the voltage across the battery is 9.00â€‰V .

Explanation:

Formula to calculate the current through both the resistor and the battery by using ohmâ€™s law is,

I=Î”VR

• I is the current,
• Î”V is the potential difference of the battery,
• R is the resistor,

Substitute 8.00â€‰Î© for R and 9.00â€‰V for Î”V to find I

(b)

To determine
The emf of the battery.

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